aFe ATLAS 5 IN Aluminized Steel DPF-Back Exhaust System w/Polished Tip (49-04040-P) 1532 Manufactured from high grade XLPE

Manufactured from high grade XLPE cross-linked polyethylene for the ultimate in durability

Direct replacement for OEM muffler works with stock cats and fabspeed's catbypass pipes

2 2005 Audi S4 Engine: 4

The polyurethane construction is designed to meet modern elevated engine compartment temperatures with a reaction injection molded (RIM) polyurethane configuration

The CNC formed pipes ensure the best possible flow for horsepower and torque

aFe ATLAS 5 IN Aluminized Steel DPF-Back Exhaust System w/Polished Tip (49-04040-P) 1532 Manufactured from high grade XLPEAtlas Aluminized Steel DPF Back Exhaust System with Single Side Exit (49 04040 P) by aFe. Exhaust System Type: DPF Back. Exhaust Tubing Material: Aluminized Steel. Main Tubing Diameter: 5". Exhaust System Sound: Aggressive Loud. The ATLAS Exhaust System channels the exhaust from the engine to the rear of the vehicle on a racing diesel engine truck. It has the least amount of exhaust flow restriction possible to enable the engine to make more